ITEM06 C15-2023-0048 ADV PACKET JAN8 PART4 — original pdf

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PROPOSED PLAN (ENLARGED) FLOATING TURBIDITY CURTAIN Floatation Water Surface Filter Cloth Skirt (Variable Depth) Ballast Chain Channel Bottom BOARDS FENCE LOCATION PRIOR TO CLEARING, GRADING AND PAVING PERMEABLE PAVING AREA CURB FENCE LOCATION DURING PERMEABLE PAVING INSTALLATION CRZ BOARDS TEMPORARY ACCESS ROAD, EXISTING ROADWAY OR EASEMENT AS APPROVED CRZ WOOD CHIP MULCH AREA 100 mm - 150 mm (4"-6") DEPTH LINEAR CONSTRUCTION THROUGH TREES TREES IN PAVING AREA MINIMUM NECESSARY WORK AREA (WOOD CHIP MULCH 100 TO 150 mm 4" TO 6" DEPTH) BLDG. ADD BOARDS STRAPPED TO TRUNK DUE TO CLOSENESS OF FENCE LESS THAN 1.5 m (5') FROM TRUNK TREES NEAR CONSTRUCTION ACTIVITY LIMIT OF CONTRUCTION LINE AS SHOWN ON PLAN NATURAL AREAS CRITICAL ROOT ZONE (C.R.Z) RADIUS = 12mm PER mm (1 FT. PER INCH) OF TRUNK DIAMETER INDIVIDUAL TREE GROUP OF TREES CITY OF AUSTIN WATERSHED PROTECTION DEPARTMENT TREE PROTECTION FENCE LOCATIONS RECORD COPY SIGNED BY J. PATRICK MURPHY 11/16/99 ADOPTED THE ARCHITECT/ENGINEER ASSUMES RESPONSIBILITY FOR APPROPRIATE USE OF THE STANDARD STANDARD NO. 610S-1 LOC FTC SF TP LEGEND LIMITS OF CONSTRUCTION FLOATING TURBIDITY CURTAIN SILT FENCING TREE PROTECTION SHORELINE PROPOSED CONSTRUCTION CEF WETLAND 150' CEF WETLAND SETBACK SITE PLAN NOTES: - - - - - - - - - ENVIRONMENTAL INSPECTOR HAS THE AUTHORITY TO ADD AND/OR MODIFY EROSION/ SEDIMENTATION CONTROLS ON SITE TO KEEP PROJECT IN COMPLIANCE WITH THE CITY OF AUSTIN RULES AND REGULATIONS. [LDC 25-2-183] NO WATER OR WASTEWATER UTILITIES ARE PROPOSED WITH THIS DEVELOPMENT. ALL AREAS DISTURBED IN THE CRITICAL WATER QUALITY ZONE SHOULD BE RESTORED AS PER STANDARD SPECIFICATION 609.S. NO DREDGE PROPOSED ALL WORK TO BE PERFORMED FROM BARGE PERMANENT IMPROVEMENTS ARE PROHIBITED WITHIN THE SHORELINE SETBACK AREA [LDC 25-2-551(8)(3)] THE PROPOSED BOAT DOCK WILL BE AT LEAST 66% OPEN [LDC25-2-1176(A)(8)(B)] NO PILINGS TO BE DRIVEN WITHIN THE 50% CRZ ALL MATERIALS ON LAND TO BE PERMEABLE AQUA PERMITS LLC AUSTIN TEXAS DESIGN, PERMITTING, CONSULTING, Y MAS ON THE SHORE OF LAKE AUSTIN IN THE BEAUTIFUL STATE OF TEXAS, UNITED STATES OF AMERICA. LAKE AUSTIN SHORELINE 492.8' MSL LAKE AUSTIN LAKE AUSTIN LA ZONING LA ZONING 6 5 8" STEEL PILINGS DRIVEN TO REFUSAL 490' 492' DOCK LIGHTING PER LDC 25-2-1176 01 2 5 10 20 30 40 SCALE: 1=1' LIMITS OF CONSTRUCTION FLOATING TURBIDITY CURTAIN PROPOSED TWO-STORY, TWO-SLIP 1100 SQ FT BOAT DOCK 114'-7" EXISTING PORTION OF BOARDWALK TO REMAIN, RE-DECK TO MATCH DOCK LOC LOC FTC 2'-10" 11'-2" FTC 33'-7" 5'-7" FTC 11'-2" LOC LOC LOC LO C LO C F T C 2'-10" C T F LO C 29'-1" F T C LO C 28'-6" F T C LO C L O C FTC L O C FTC 28'-10" L O C L O C FT C L O C 4'-2" L O C 7'-8" L O C C T F 25' 50% CRZ 100% CRZ LOC T P TP T P TP 28'-4" P T T P LOC T P P T TP TP P T T P T P TP P T 50% CRZ T P TP T P LOC T P P T TP T P TP T P LOC 100% CRZ TREE PROTECTION FENCING TREE # 5005 TREE # 5006 EXISTING DECK STRUCTURE TO REMAIN 6' 10' PROPERTY SETBACK 75' CWQZ SETBACK COA AND FEMA FULLY DEVELOPED FLOODPLAIN LINE K C O D F F I L C K C O R D R F F I L 6 4 C 7 8 K 7 S C A O X E R T N 6 4 T S 4 U A 1 , I 12/19/2022 DATE SCALE see bar scale ENGINEER . . DRAFTER AQUA PERMITS FILE SP-2023-0147D SHEET SITE PLAN ENLARGED 4 OF 6 ITEM06/25AQUA PERMITS LLC AUSTIN TEXAS DESIGN, PERMITTING, CONSULTING, Y MAS ON THE SHORE OF LAKE AUSTIN IN THE BEAUTIFUL STATE OF TEXAS, UNITED STATES OF AMERICA. K C O D F F I L C K C O R D R F F I L 6 4 C 7 8 K 7 S C A O X E R T N 6 4 T S 4 U A 1 , I 12/19/2022 DATE SCALE see bar scale ENGINEER . . DRAFTER AQUA PERMITS FILE SHEET ELEVATIONS SP-2023-0147D SHEET 5 of 6 ITEM06/26LOC LOC FTC FTC SF TP SF TP LEGEND LIMITS OF CONSTRUCTION FLOATING TURBIDITY CURTAIN SILT FENCING TREE PROTECTION SHORELINE PROPOSED CONSTRUCTION CEF WETLAND 150' CEF WETLAND BUFFER LANDSCAPE PLAN WETLAND MITIGATION LEGEND 1 Bald cypress (Taxodium distichum) 609S 200 American Water Willow (Justicia americana) WETLAND 1 Bushy Bluestem (Andropgon glomeratus) 609S 30 Emory’s Sedge (Carex emoryi) WETLAND 1 Roughleaf dogwood (Cornus drummondii) 609S 233 TOTAL WETLAND PLANTINGS *ALL PLANTS WILL BE IN 1 GALLON CONTAINERS *ALL TREES WILL BE AT LEAST 1.5 INCHES IN DIAMETER AND AT LEAST 6' TALL. PLANTING MITIGATION CALCULATIONS 609S RESTORATION • • • All disturbed areas within the shoreline setback shall be revegetated pursuant to 609s specifications, using 609s seeding or planting Area of impact is approximately 71 sf Planting criteria recommends 1 native shade tree and 1 native understory tree/500 sq/ft of disturbed area. 1 sf = 1 shade tree, 1 understory tree and one native shrub per 100 sq/ft = 1 shrubs BULKHEAD MITIGATION • 0 lf of new bulkhead/3 lf = 0 plants WETLAND MITIGATION • • Area of impact: 1790 sq ft. Assuming 36" triangular spacing=230 plants PLANTING MITIGATION RULES • • • All plants to be sourced within a 200 mile radius of austin. Follow all guidelines found in the city of austin environmental criteria manual, Reference code sections ecm 1, 13.0, 1.10.4 (d), & item no. 609s as applicable TOTAL MITIGATION PLANTS REQUIRED = 233 490' 492' LAKE AUSTIN SHORELINE 492.8' MSL 1 BUSHY BLUESTEM 1 ROUGHLEAF DOGWOOD 1 BALD CYPRESS AREA CONSISTS OF LOC ON THE SHORE IN THE CWQZ AND REQUIRES NATIVE GRASSLAND SEEDING/PLANTINGS PER THE COA STANDARD SPECIFICATION 609.S.6. NATIVE TOPSOIL AND SEED BED PREPARATION REQUIRED L O C 4'-2" L O C 7'-8" LOC 28'-4" TP LOC TP TP LOC T P P T LOC LIMITS OF CONSTRUCTION FLOATING TURBIDITY CURTAIN PROPOSED TWO-STORY, TWO-SLIP 1100 SQ FT BOAT DOCK EXISTING PORTION OF BOARDWALK TO REMAIN, RE-DECK TO MATCH DOCK EXISTING DECK STRUCTURE TO REMAIN L O C F T C LOC FTC 2'-10" 11'-2" LOC FTC L O C FTC 25' 28'-10" L O C FTC L O C FT C LA ZONING LA ZONING LAKE AUSTIN LAKE AUSTIN DOCK LIGHTING PER LDC 25-2-1176 LOC FTC 33'-7" 5'-7" 11'-2" LOC FTC LOC 2'-10" F T C LO C LO C FTC LO C 29'-1" F T C LO C C T F LO C 50% CRZ 50% CRZ 100% CRZ 100% CRZ TREE PROTECTION FENCING TREE # 5004 TREE # 5005 TREE # 5006 0 1 2 5 10 20 30 40 SCALE: 1=1' FLOATING TURBIDITY CURTAIN Floatation Water Surface Filter Cloth Skirt (Variable Depth) Ballast Chain Channel Bottom 15 EMORY'S SEDGE 200 AMERICAN WATER WILLOW 15 EMORY'S SEDGE 75' CWQZ SETBACK AQUA PERMITS LLC AUSTIN TEXAS DESIGN, PERMITTING, CONSULTING, Y MAS ON THE SHORE OF LAKE AUSTIN IN THE BEAUTIFUL STATE OF TEXAS, UNITED STATES OF AMERICA. K C O D F F I L C K C O R D R F F I L 6 4 C 7 8 K 7 S C A O X E R T N 6 4 T S 4 U A 1 , I 12/19/2022 DATE SCALE see bar scale ENGINEER . . DRAFTER AQUA PERMITS FILE SP-2023-0147D SHEET LANDSCAPE SHEET 6 OF 6 ITEM06/27